Nucleating agent

{
  "id": "MLC-T-CHM-008126",
  "term": "Nucleating agent",
  "field": "Chemistry",
  "definition": "A substance added to a system to promote the formation of new phases, such as crystals from a solution or gas bubbles from a liquid. It provides sites for heterogeneous nucleation, lowering the energy barrier for phase transformation. Common examples include insoluble particles in crystallization or specific additives in polymer processing to control morphology.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "nucleation"
  ],
  "references": [
    "PAC, 1972, 31, 577. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry' on page 608 (https://doi.org/10.1351/pac197231040577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/nucleating-agent/"
}